AUTO RESET EARTH LEAKAGE BREAKER SYSTEM

摘要

An auto reset earth leakage circuit breaker system is provided to automatically control the circuit breaker due to conditions by checking a motivation of breaking. An earth leakage circuit breaker(200) detects and protects an over-current by using a bimetal(212) and a leakage current by using a current transformer(214). A circuit breaker recovery unit receives a signal from the earth leakage circuit breaker, and checks a motivation of breaking, and controls recovery of the earth leakage circuit breaker. The circuit breaker recovery unit includes a monitoring unit(320), a controller(330), and a lever driving unit(340). The monitoring unit includes a primary power detection part, a secondary power detection part, an over-current detection part, and a leakage current detection part. The controller generates a control signal to recover the earth leakage circuit breaker. The lever driving unit drives a lever to recover the earth leakage circuit breaker.